Experimental realization of quantum teleportation using coined quantum walks

Chatterjee, Yagnik; Devrari, Vipin; Behera, Bikash K.; Panigrahi, Prasanta K.

doi:10.1007/s11128-019-2527-8

Cited by 29 publications

(26 citation statements)

References 27 publications

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“…Quantum controlled teleportation of arbitrary qubit states have also been demonstrated via cluster states [47]. Then a new way of quantum teleportation has been proposed using entanglement in coined quantum walk [48][49][50], which has taken tremendous attention of the scientific community. Sangchul et al [51] have studied the fidelity of quantum teleportation under the noisy channels.…”

Section: Introductionmentioning

confidence: 99%

Complexity analysis of quantum teleportation via different entangled channels in the presence of noise

Singh¹,

Kumar²,

Behera³

2021

Preprint

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Quantum communication is one of the hot topics in quantum computing, where teleportation of a quantum state has a slight edge and gained significant attention from researchers. A large number of teleportation schemes have already been introduced so far. Here, we compare the teleportation of a single qubit message among different entangled channels such as the two-qubit Bell channel, three-qubit GHZ channel, two-and three-qubit cluster states, the highly entangled five-qubit Brown et al. state and the six-qubit Borras et al. state. We calculate and compare the quantum costs in each of the cases. Furthermore, we study the effects of six noise models, namely bit-flip noise, phase-flip noise, bit-phase flip noise, amplitude damping, phase damping and the depolarizing error that may affect the communication channel used for the teleportation. An investigation on the variation of the initial state's fidelity with respect to the teleported state in the presence of the noise model is performed. A visual representation of the variation of fidelity for various values of the noise parameter η is done through a graph plot. It is observed that as the value of noise parameter in the range η ∈ [0, 0.5], the fidelity decreases in all the entangled channels under all the noise models. After that, in the Bell channel, GHZ channel and three-qubit cluster state channel, the fidelity shows an upward trend under all the noise models. However, in the other three channels, the fidelity substantially decreases in the case of amplitude damping, phase damping and depolarizing noise, and even it reaches zero for η = 1 in Brown et al. and Borras et al. channels.

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Section: Introductionmentioning

confidence: 99%

Complexity analysis of quantum teleportation via different entangled channels in the presence of noise

Singh¹,

Kumar²,

Behera³

2021

Preprint

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“…Recently, by selecting quantum walks with two coins as the basic model and two coin spaces as the communication carriers, we successfully implement generalized quantum teleportation and perfect state transfer protocols on a line, a circle, and a complete or regular graph 1,27 . The experimental realizations of generalized quantum teleportation by IBM quantum platform has been given by Chatterjee et al 25 . Here, we would give the experimental realizations of perfect state transfer by quantum walks with two coins on IBM quantum experience platform.…”

Section: Preliminariesmentioning

confidence: 99%

“…Figure 7 represents the generation of W state. Compared with the creation of W state given in 25 , Figure 7 is more simplifier and thus the result is more accurate.…”

Section: /11mentioning

confidence: 99%

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Experimental realization of state transfer by quantum walks with two coins

Shang

2019

Quantum Sci. Technol.

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Quantum state transfer between different sites is a significant problem for quantum networks and quantum computers. By selecting quantum walks with two coins as the basic model and two coin spaces as the communication carriers, we successfully implement some perfect state transfer tasks on various graphs.(EPL, 124 (2018) 60009) 1 . Here, we demonstrate the experimental implementation of this scheme using IBM quantum experience platform. In particular, we show the transfer of Bell state, GHZ state and W state on complete graph on the quantum device. Also, we observe that our protocol has high fidelity by preforming quantum state tomography. arXiv:1909.03617v2 [quant-ph]

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“…The coherence times of these qubits ranges from 5µs to 55µs. This system has been utilized to perform diverse experiments such as, experimental violation of inequalities in support of quantum entanglement [43,44], quantum router [45], quantum simulations [46,47], demonstration of no-hiding theorem [49], demonstration of quantum secret sharing [50], demonstration of quantum walks [51,52,53] etc.…”

Section: Introductionmentioning

confidence: 99%

Generation of perfect W-state and demonstration of its application to quantum information splitting

Swain,

Devrari,

Rai

et al. 2020

Preprint

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We report the first experimental realization of perfect W-state in a superconducting qubit based system. In contrast to maximally entangled state, the perfect W state is different in weights and phases of the terms contained in the maximally entangled W-state. The prefect W state finds important applications in quantum information processing tasks such as perfect teleportation, superdense coding, secret sharing etc. The efficiency of generation is quantified by fidelity which is calculated by performing full quantum state tomography. To verify the presence of genuine nonlocality in the generated state, we experimentally perform Mermin's inequality tests. Further, we have also demonstrated splitting and sharing of quantum information using the experimentally generated state.

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Experimental realization of quantum teleportation using coined quantum walks

Cited by 29 publications

References 27 publications

Complexity analysis of quantum teleportation via different entangled channels in the presence of noise

Complexity analysis of quantum teleportation via different entangled channels in the presence of noise

Experimental realization of state transfer by quantum walks with two coins

Generation of perfect W-state and demonstration of its application to quantum information splitting

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